Newsweaver, communications software provider, offers the Newsweaver API, aimed at increasing intra-company or customer engagement through email campaigns. Newsweaver's platform utilizes homegrown microsite, segmentation, personalisation, in-depth reporting, and social media to encourage and increase engagement.
Rebelmail publicly launched its interactive email API. After successful private integrations with ESPs like Mailjet, SendGrid, and others; Rebelmail is ready for third party integrations across the board. Through the API, users can build, send, and track interactive emails directly within an app.
DokDok, a Montreal-based startup, has had an email attachment management application on Google Apps some time. To make this work, it made an API to use internally that intelligently uses email accounts as if they were datastores. Recently, the company announced that this API would be renamed Context.IO and available to all.